Machine for taping electrical coils



1951 Y J. s. BURGE ET AL 2,569,513

MACHINE FOR TAPING ELECTRICAL cons Original Filed March 11, 1947 18Sheets-Sheet 1 l/vve-lv-raes W ArmeMsYS Oct. 2, 1951 .J. s. BURGE ET ALMACHINE FOR TAPING ELECTRICAL COILS l8 Sheets-She'et 2 Original FiledMarch 11, 1947 Sam lzvvezvraes Mum/73% ATTOBA/EYS Oct. 2, 1951 s URGE ETAL 2,569,513

MACHINE FOR TAPING ELECTRICAL COILS Original Filed March 11, 1947 18Sheets-Sheet 3 INVENTORS ATTORNEY- 1951 J. s. BURGE ETAL 2,569,513

MACHINE FOR TAPING ELECTRICAL COILIS Original Filed March 11, 1947 18Sheets-Sheet 4 INVENTORY f B YM MW 7%, $52 A T TORNEYS 1951 J. s. BURGEET AL 2,569,513

MACHINE FOR TAP ING ELECTRICAL COILS Original'Filed March 11, 1947 18Sheets-Sheet 5 INVENTORS [WWW g/ A rromvsys 18 Sheets-Sheet 6 J. S.BURGE ET AL gmmmmmvrozzs $63 A TTORNEYS' MACHINE FOR TAPING ELECTRICALCOILS Oct. 2, 1951 Original Filed March 11. 1947 Ira 5E Oct. 2, 1951 J.5. BURGE ET AL MACHINE FOR TAPING ELECTRICAL cons l8 Sheets-Sheet '7Original Filed March 11, 1947 6 5 a a my a K J r l m w fig a 3, 0 y v. qp. g, 3 3 a l 2 9 z a a aP vHHHHIUHI HI H H l i m 9 a u 6 F 3 M "u ,a m5 rnvxfll l 0 4 llllllllfl Z 2 a H 0 lllllllfll ML INVENTORS o 1951 J.s. BURGE ETAL 2,569,513

MACHINE FOR TAPING ELECTRICAL COILS Original Filed March 11, 1947 18Sheets-Sheet 8 '.2 5, 7 777 luvfit oi Oct. 1951 J. s. BURGE ET AL2,569,513

MACHINE FOR TAPING ELECTRICAL COILS l8 Sheets-Sheet 9 Original FiledMarch 11, 1947 INVENTORS BYW Mrflujd $5,; ATTORNEYS Oct. 2, 1951 J. s.BURGE ETAL MACHINE FOR TAPING ELECTRICAL COILS l8 Sheets-Sheet 10Original Filed March 11', 1947 AIR BANS? 2/ cu/ yon/ INVENTORS MW idATTORNEYJ' 18 Sheets-Sheet ll J. S. BURGE ET AL MACHINE FOR TAPINGELECTRICAL COILS Oct. 2, 1951 Original Filed March 11, 1947 I mvszvronsBYM- fiArrom/Ew J; S. BURGE ET AL MACHINE FOR TAPING ELECTRICAL COILSOct. 2, 1951 18 Sheets-Sheet 12 Original Filed March 11, 1947 n I f I .1-J h l/ m H 3% 1 A m H H w an M H m H S& g m QM 5 U Q r. f u H \a H \N nH h H. m. 5 wk m a Ag .g m. wfiw wk R 1:;

INVENTORS BYMM ATTORNEY Oct. 2, 1951 J. s. BURGE ET AL MACHINE FORTAPING ELECTRICAL cons l8 Sheets-Sheet 13 Original Filed March 11, 1947wk RR IN V EN TORS BY 04 ATTORNEYJ' J. S. BURGE ET AL MACHINE FOR TAPINGELECTRICAL COILS Oct. 2, 1951 18 Sheets-Sheet 14 Original Filed March11, 1947 IN VEN TORJ' wwrfi ATTORNEYS Oct. 2, 1951 MACHINE OriginalFiled March 11, 1947 lllllmlllnl mmm Ill J. S. BURGE ET AL FOR TAPINGELECTRICAL COILS 18 Sheets-Sheet 15 INVENTORY ATTORNEYS Oct. 2, 1951 J.s. BURGE ET AL MACHINE FOR TAPING ELECTRICAL cons l8 Sheets-Sheet l6Original Filed March 11, 1947 INVENTORY A TTORNEYS Oct. 2, 1951 J. S.BURGE ET AL MACHINEFOR TAPING ELECTRICAL COILS l8 Sheets-Sheet 17Original Filed March 11, 1947 A TTORNEYJ' Oct. 2, 1951 J. s. BURGE ET ALMACHINE FOR TAPING ELECTRICAL cons Original Filed March 11, 1947 18Sheets-Sheet 18 m6 wm 7 v/W INVENTORS BY yaw/P ATTORNEYS Patented Oct.2, 1 51 2,569,513 MACHINE FOR TAPIN G ELECTRICAL COILS James S. Burge,Anderson, Hilton J. McKee, Middletown, and Richard M. Goodwin, Anderson,Ind., assignors to General Motors Corporation, Detroit, Mich.', acorporation of Delaware Original application March 11, 1947, Serial No.733,758. Divided and this application October 29, 1948, Serial No.57,162

1 This invention relates to the manufacture of electric coils, forexample, pre-wound armature coils to be assembled with the slottedarmature core of a dynamo-electric-machine.

This application is a division of Serial No. 733,758, filed March 11,1947. 7

An object of the invention is to provide an apparajtus for taping a coilsupported on storm which may be a form on which the coil is wound by acoil winding mechanism. In the disclosed embodiment of the invention,this object is accomplished by the use of a turret or dial carrying aplurality of form halves adapted to be placed successively in contactwith a form half rotated by a winding mechanism provided by the machinewhich operates automatically to wind wire upon the contacting formhalves. At the completion of winding, the wound coil is locked to theform half carried by the dial and said form half is retracted from theform half provided by the winding mechanism. The dial is indexed tocarry the coil to a station where a liquid is applied to the portions ofthe coil which are to receive the tape. The dial is indexed to carry thecoil to a station where the tape is applied, the sticking of the tape tothe coil being facilitated by the liquid applied. At the taping station,the dial form carrying the coil is advanced toward tape applying memberswhose movements are coordinated with movements of the dial form in orderto apply the tape to the coil. The dial form is retracted and the, dialform is indexed to an ejection station when the coil is unlocked fromits supporting form half;

and an ejector causes the taped coil to gravitate upon a. stacking rack.The empty form half is conditioned to receive the next coil to be woundthereon. Each indexing of the dial brings an empty form half tov thewinding station where it is in alignment with the form hall of thewinding mechanism and the aligned form halves are caused to engage; andthe winding of wire thereon takes place while other coils carried by thedial are located respectively at the liquid-applying, tape-applying andejecting stations.

Further objects and advantages of the present invention will be apparentfrom the following description, reference being had to the accompanyingdrawings, wherein a preferred embodiment of the present invention isclearly shown.

In the drawings:

Fig. 1 is a fragmentary. front view of the machine.

14 Claims. (Cl. 216-25) Fig. 2 is a fragmentary, top view of themachine.

Fig. 3 is a front view of the dial half of the winding head form.

Fig. 4 is a sectional view on line 4-4 of Fig. 3.

Fig. 5 is a sectional view on line 5-5 of Fig. 4.

Fig. 6 is a back view of the form frame.

Fig. 7 is a sectional view on line 'I-l of Fig. 6.

Fig. 8 is a view of a cam support included in the dial half of thewinding form.

Fig. 9 is' a side view thereof.

Fig. 10 is a view in the direction of arrow ll of Fig. 9.

Fig. 11 is a back view of the cam supported by the part shown in Fig. 8.

Figs. 12, 13,, 14 and 15 are side views looking respectively in thedirection of arrows l2, II, It and I5 of Fig. 20.

Fig. 16 is a plan view partly in section of the rotary dial or turretwhich carries four of the forms shown in Figs. 3 to 15. Quadrant Qlshows a plan view. Quadrant Q2 shows the turret cap and form-bearingcover removed. Quadrant Q3 is a section on line IB-lB of Fig. 23.Quadrant Q4 is a section on line lG-lt of Fig. 23.

Fig. 17 is a sectional view on line l'l-fll of Fig. 23.

Fig. 18 is a view in the direction of arrow I l of Fig. 16.

Figs. 19 and 20 show fragments of a mechanism of Fig. 18 in differentpositions.

Figs. 21 and 22 are sectional views on lines 2l-2l and 22-22 of Fig. 20.

Fig. 23 is a sectional view taken on line 23-28 of Fig. 16.

Fig. 24 is a fragmentary view in the direction of arrow 24 of Fig. 23.

Fig. 25 is a sectional view on line 25-25 of Fig. 16.

Fig. 26 is a fragmentary, sectional view on line 26-26 of Fig. 17 whenthe Geneva driving arm has been rotated 45 counterclockwise from theposition shown.

Fig. 27 is a front elevation of the coil taping apparatus.

Fig. 28 is a. sectional view on line 28-28 of Fig. 27 and shows the coilspreading apparatus.

Fig. 29 is a diagram showing parts of Fig. 28'

in other positions.

Fig. 30 is a view in the direction of arrow 30 of Fig. 28 of the coilspreading apparatus.

Figs. 31 and 32 are diagrams showing parts of Fig. 30 in otherpositions.

3 Fig.33 is a side view of the coil taping apparatus looking in thedirection of arrow 33 of Fig. 27. Fig. 34 is a rear view of the tapingapparatus looking in the direction of arrow 34 of Fig. 33.

Fig. 35 is a sectional view on line 35-35 of Fig. 33. a

Fig. 36 is a sectional view on line 36-36 of Fi 27. a

Figs. 37 and 38 are-views taken respectively in the direction of arrows31 and 38 of Fig. 36, and include sectional views taken generally onlines 31-31 and 38-38.

Fig. 39 is a plan view in the direction of arrow 39 of Fig. 33.

Fig. 40 is a fragmentary, plan view looking in the direction of arrow 40of Fig. 33'.

Fig. 41 is a fragmentary, sectional view on line "-4! of Fig. 33.

Fig. 42 is a fragmentary, sectional view on line 42-42 of Fig. 27.

Fig. 43 is an enlarged side view showing the tape sealing parts shown insmaller scale in Fig. 36.

Fig. 44 is a view in the direction of arrow 44 of Fig. 43.

Fig. 45 is a sectional view on line 45-45 of Fig. 43.

Fig. 46 is a sectional view on line 46-46 of Fig. 53.

Figs. 47, 48 and 49 are diagrams showing operation of tape sealingmembers.

Fig. 50 is a plan view of a mechanism for applying a liquid to theportions of the coils to which tape is to be applied. This figureincludes a sectional view on line 50-50 of Fig. 33.

Fig. 51 is an enlargement of parts located in dot-dash circle IA of Fig.50.

Fig. 52 is a sectional view on line 52-52 of Fig. 50.

Fig. 53 is a sectional view on line 53-53 of Fig. 50.

Fig. 54 is a front elevation of the mechanism for ejecting coils fromthe dial.

Fig. 55 is a fragmentary, sectional view on line 55-55 of Fig. 54.

Fig. 56 is a fragmentary view in the direction of arrow 56 of Fig. 54.

In general, the machine comprises a rotating dial or turret D (Figs. 1and 2), which carries a coil (wound by a winder CW) to a coil tapingapparatus CT (Fig. 2) whereby the active coil sides of the coil arebound together by pieces of tape so that the coil will not becomeunwound, a coil ejecting apparatus CE (Fig. 2) which operates to removea taped coil from a form carried by dial D, and a mechanism CR whichmoves intermittently a plurality of coil racks onto which the coilsdescend when they are ejected from a form carried by the dial D.

Referring to Fig. 23, a power driven shaft H8 is journaled in bearingssupported by a frame 28! which is suspended from a. table !0!. Shaft H8drives a worm 232 meshing with a worm gear 283 connected with a tubularshaft 284. Shaft 284 is connectible with a solid shaft 285 through atorque limiting clutch 286 and a one-revolution clutch II. The torquelimiting clutch 286 comprises a driving disc 281 which is notched toreceive plungers 288 which springs 289 urge radially inwardly. Theplungers and springs are retained by screws 290 threaded into a drivendisc 29!. ment 240 of clutch II which is tripped automatically at theproper time by-means disclosed in application S. N. 733,758 to connectelement The disc 29! provides the driving ele- 4 240' with drivenelement 24! of clutch II, connected with shaft 285.

Shaft 285 is journaled ina bearing 300 carried by the frame 28! and ina, bearing 30! provided by a plate 302 attached by screws 303 to a frame304 attached to a plate 305 attached by screws 308 to the frame 28!. Thelower end of the shaft 285 is attached to a cam 301 engaged by a roller308 on the stem 309 of the valve V8 for controlling a compressed aircircuit described in S. N. 733,758.

The upper end of shaft 285 is connected by screws 3|0 and dowel pins 3!!with the driving lever 3l2 of a Geneva gear shown in Figs. 27

and 26. Lever 3l2 carries a roller M3 for engaging radial slots 3I4 in aGeneva driven disc 3l8 having notches 316 for receiving a cylindricalsurface 3I1 of the lever 3l2. Screws 3|5a attach the disc 3I5 to the hub3|8 of a dial 3!!! (Fig. 23)

A fixed post 320 is supported by table I0! and has an extension 320awhich is received by abushing 32! attached to the table l0l. The ex-'tension 320a is threadedly connected with a tie rod 322, the lower endof which is supported by the base I00. By turning the rod 322, when thelock nut 322a is loosened, any sag in the table ml, which supportsconsiderable weight, can be eliminated- Between the post 320 and the hub3i8 of dial 319, roller bearings 324 are located. To the hub 3I8 thereis attached a frame 325- which carries the outer race of a ball bearing326 spaced from the inner race of the upper roller bearing 324 by asleeve 321. Nuts 328 threaded on the post 320 retain the ball and rollerbearings in the positions shown in Fig. 23. A cover 323 is attached toframe 325 by screws 330.

The periphery of dial 319 is confined between a ledge not shown providedby a housing 332 and a plate 333 attached by screws threaded into holes334 (Fig. 17) in said frame. Housing 332 has a flange 335 attached tothe table by screws 338. In Fig. 17, the inside and outside contour ofplate 333 is indicated by the dot-dash lines. The frame 332, the plate333 and the dial 3l9 provide an enclosure for the Geneva gear.

The dial 3I9 provides four brackets 340 (Figs. 16 and 23) each having abearing bushing 34! retained by cap 34la for receiving a shaft 342 whichat its outer end as shown in Fig. 23 supports the dial winding form half350 to be described. Each shaft 342 is moved axially by toggle mechanismcomprising a link 31! and two links 312. Link 31! is supported by apivot 313 supported by bracket 325. Links 312 are pivotally connected bytheir bosses 314 (Fig. 16) with a disc 315 retained on shaft 342 by awasher 316 and a nut 311 threaded on a screw 318 which secures form 350to the shaft. The disc 315 carries a ball thrust bearing 319 for takingthe thrust between the disc 315 and a shoulder 343 of shaft 342. Links31! and 312 are connected by a pin 380 carried by a clevis 38! intowhich a rod 382 is threaded and is locked by a nut 382a. A spring 312aurges each pair of links 312 toward each other. When this spring isuncoupled. the. links 312 can be easily separated from the pin 380 andthe disc 315.

Rod 382 extends down through a bushing 382a carried by the dial 3!!! andhas a head 383. Between the head 383 and a plate 384 attached to the hub3!!! of dial 3I9 there is located a coil spring 385 which, being undercompression, urges the rod 380 downwardly, thus breaking the toggle asshown in Fig. 23 so that the shaft 342 is

